Mohs Hardness Test Kit, 5-9 Scratch Tester Hardness Test Pen with Storage Box, A Pen Head Inlaid with Jade and Stone, Scratch Tester for Mineral, Jewelry, Jade, Glass, Gemstone Identification.

Product name: Mohs hardness penModel: No. 5-9 Hardness PenSize: pen 100mmX6mm/box 150mmx100mmWeight: pen 7.8g/Full Box 221gMaterial Composition:Pen Tips: Made from specific minerals corresponding to their respective Mohs hardness levels.No. 5: Apatite/No. 6: Orthoclase/No. 7: Quartz/No. 8: Topaz/No. 9: CorundumPackage includes:Mohs hardness test kit*1Storage box*1★Test Procedure:1. First, indirectly visually estimate the sample's hardness.2. Find an inconspicuous area and scratch the sample with a hardness pen that is 1 to 2 levels lower than the visual hardness. If the scratch does not move, the sample's hardness is higher than the hardness of the pen. Then, scratch again with a pen that is one level higher. If a slight mark remains, the sample's hardness is comparable to the hardness of the pen, and you can scratch again with a pen that is one level higher. If a scratch remains, the sample's hardness is lower than the hardness of the pen, and you can now determine the sample's hardness or its hardness range.3. Ensure the scratching pressure is moderate, neither too light nor too heavy.4. If any powder is present during the scratch test, determine whether it is sample powder or wear and tear from the pen. Avoid misjudging it.❤ very happy that you can visit my shop, I wish you happy shopping!

• Crafted with high-quality materials, this mohs hardness tester is sturdy and comfortable to hold. Ideal hardness testing equipment for professionals and hobbyists in jewelry and industrial mineral identification.
• Each mohs hardness pick features real minerals (5# Apatite, 6# Orthoclase, 7# Quartz, 8# Topaz, 9# Corundum) inlaid on durable metal rods, ensuring precise scratch tester readings for gem jade jewelry and rocks.
• Comprehensive Hardness Range Covers levels 5–9, making this portable metal hardness tester kit perfect for testing gemstones, ceramics, glass, concrete, and other industrial materials. A complete rock hardness test kit for multiple surfaces.
• Perform rapid scratch tests or visual comparisons under magnification. This versatile hardness testing equipment allows accurate gem tester for all stones without damaging surfaces.
• Wide Applications & Reliability, Suitable for jewelry inspection, geological exploration, classroom study, and hobbyist use. This mohs hardness test kit provides professional results across various industrial mineral identification scenarios.